CLINICAL, CEPHALOMETRIC AND ELECTROPHYSIOLOGICAL CORRELATES FOR THE ASSESSMENT OF ORTHODONTIC STATUS
Ключевые слова:
Orthodontic status, nasal breathing, clinical and cephalometric assessmentАннотация
Aim of the present study was complex clinical and cephalometric assessment of orthodontic status in correlation with bioelectrical characteristics of temporalis and masseter muscles bilaterally in patients with nasal breathing. It is axiomatic that bioelectrical activity of the masticatory muscles is cardinal parameter of functional state of the masticatory apparatus; neuromuscular balance is paramount for the functioning of the masticatory apparatus.Results of the study clearly indicate that orthodontic status, as defined by skeletal classification, significantly correlates with electrophysiological characteristics of temporalis and masseter muscles. Further, results of the electromyographic examination suggest the ability to verify initial assessment of orthodontic status and follow up effectiveness and functional sequel of orthodontic intervention.Taking into consideration safety, relative inexpensiveness and methodical simplicity of temporalis and masseter muscles electromyographic procedure and undoubted relevance thereof for validating clinical and cephalometric results, addition of electromyography to the arsenal of tools for orthodontic diagnosis should be considered well grounded.This also provides reasonable grounds to determine significance of electromyography in objectifying breathing type. Results yielded by the present study suggest that in orthodontic skeletal classification class I, i.e. in normal occlusion, where maxilla and mandible are correctly positioned with reference to the cranial base, masseter and temporalis muscles also function congruously and proportionately. These two morphometric and functional variables stand in cause and effect relation to each other.
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